mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 04:30:12 +00:00
39f4e8d9cc
This update was done with the following bash script:
find test/Transforms -name "*.ll" | \
while read NAME; do
echo "$NAME"
if ! grep -q "^; *RUN: *llc" $NAME; then
TEMP=`mktemp -t temp`
cp $NAME $TEMP
sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \
while read FUNC; do
sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP
done
mv $TEMP $NAME
fi
done
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
100 lines
2.7 KiB
LLVM
100 lines
2.7 KiB
LLVM
; Test that the strncmp library call simplifier works correctly.
|
|
; RUN: opt < %s -instcombine -S | FileCheck %s
|
|
|
|
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
|
|
|
|
@hello = constant [6 x i8] c"hello\00"
|
|
@hell = constant [5 x i8] c"hell\00"
|
|
@bell = constant [5 x i8] c"bell\00"
|
|
@null = constant [1 x i8] zeroinitializer
|
|
|
|
declare i32 @strncmp(i8*, i8*, i32)
|
|
|
|
; strncmp("", x, n) -> -*x
|
|
define i32 @test1(i8* %str2) {
|
|
; CHECK-LABEL: @test1(
|
|
; CHECK: %strcmpload = load i8* %str
|
|
; CHECK: %1 = zext i8 %strcmpload to i32
|
|
; CHECK: %2 = sub i32 0, %1
|
|
; CHECK: ret i32 %2
|
|
|
|
%str1 = getelementptr inbounds [1 x i8]* @null, i32 0, i32 0
|
|
%temp1 = call i32 @strncmp(i8* %str1, i8* %str2, i32 10)
|
|
ret i32 %temp1
|
|
}
|
|
|
|
; strncmp(x, "", n) -> *x
|
|
define i32 @test2(i8* %str1) {
|
|
; CHECK-LABEL: @test2(
|
|
; CHECK: %strcmpload = load i8* %str1
|
|
; CHECK: %1 = zext i8 %strcmpload to i32
|
|
; CHECK: ret i32 %1
|
|
|
|
%str2 = getelementptr inbounds [1 x i8]* @null, i32 0, i32 0
|
|
%temp1 = call i32 @strncmp(i8* %str1, i8* %str2, i32 10)
|
|
ret i32 %temp1
|
|
}
|
|
|
|
; strncmp(x, y, n) -> cnst
|
|
define i32 @test3() {
|
|
; CHECK-LABEL: @test3(
|
|
; CHECK: ret i32 -1
|
|
|
|
%str1 = getelementptr inbounds [5 x i8]* @hell, i32 0, i32 0
|
|
%str2 = getelementptr inbounds [6 x i8]* @hello, i32 0, i32 0
|
|
%temp1 = call i32 @strncmp(i8* %str1, i8* %str2, i32 10)
|
|
ret i32 %temp1
|
|
}
|
|
|
|
define i32 @test4() {
|
|
; CHECK-LABEL: @test4(
|
|
; CHECK: ret i32 1
|
|
|
|
%str1 = getelementptr inbounds [5 x i8]* @hell, i32 0, i32 0
|
|
%str2 = getelementptr inbounds [1 x i8]* @null, i32 0, i32 0
|
|
%temp1 = call i32 @strncmp(i8* %str1, i8* %str2, i32 10)
|
|
ret i32 %temp1
|
|
}
|
|
|
|
define i32 @test5() {
|
|
; CHECK-LABEL: @test5(
|
|
; CHECK: ret i32 0
|
|
|
|
%str1 = getelementptr inbounds [5 x i8]* @hell, i32 0, i32 0
|
|
%str2 = getelementptr inbounds [6 x i8]* @hello, i32 0, i32 0
|
|
%temp1 = call i32 @strncmp(i8* %str1, i8* %str2, i32 4)
|
|
ret i32 %temp1
|
|
}
|
|
|
|
; strncmp(x,y,1) -> memcmp(x,y,1)
|
|
define i32 @test6(i8* %str1, i8* %str2) {
|
|
; CHECK-LABEL: @test6(
|
|
; CHECK: [[LOAD1:%[a-z]+]] = load i8* %str1, align 1
|
|
; CHECK: [[ZEXT1:%[a-z]+]] = zext i8 [[LOAD1]] to i32
|
|
; CHECK: [[LOAD2:%[a-z]+]] = load i8* %str2, align 1
|
|
; CHECK: [[ZEXT2:%[a-z]+]] = zext i8 [[LOAD2]] to i32
|
|
; CHECK: [[RET:%[a-z]+]] = sub i32 [[ZEXT1]], [[ZEXT2]]
|
|
; CHECK: ret i32 [[RET]]
|
|
|
|
%temp1 = call i32 @strncmp(i8* %str1, i8* %str2, i32 1)
|
|
ret i32 %temp1
|
|
}
|
|
|
|
; strncmp(x,y,0) -> 0
|
|
define i32 @test7(i8* %str1, i8* %str2) {
|
|
; CHECK-LABEL: @test7(
|
|
; CHECK: ret i32 0
|
|
|
|
%temp1 = call i32 @strncmp(i8* %str1, i8* %str2, i32 0)
|
|
ret i32 %temp1
|
|
}
|
|
|
|
; strncmp(x,x,n) -> 0
|
|
define i32 @test8(i8* %str, i32 %n) {
|
|
; CHECK-LABEL: @test8(
|
|
; CHECK: ret i32 0
|
|
|
|
%temp1 = call i32 @strncmp(i8* %str, i8* %str, i32 %n)
|
|
ret i32 %temp1
|
|
}
|